8. (15 points) (a) Use the two-point forward difference formula and the two-point backward difference formula to approximate f'(0.2) separately. (b) Use the most accurate three-point formula to find f'(0), ƒ'(0.1), ƒ'(0.2), and f'(0.3). f(x) x 0 0.1 0.2 0.3 0 0.001 0.008 0.027

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